Outage in Dragon (US)
Error Code: SerializationFailure Details: Unexpected token
Resolved MinorIncident Report
Summary AI Generated
**Dragon (US) – DAX Copilot Audio Recording Incident** On July 14, 2026, ambient users of DAX/Dragon Copilot on Epic Nebula experienced launch failures in Epic Haiku, presenting a `SerializationFailure: Unexpected token` error when attempting to communicate with the server. The issue was traced to Epic's infrastructure, which Epic identified and remediated by 11:36 AM ET. The incident lasted approximately 1.6 hours and was fully resolved by 1:25 PM ET.
Microsoft is currently investigating reports of this error.
Components affected
Dragon (US) DAX Copilot for Epic - Audio RecordingTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
20 days ago - at 07/14/2026 05:25PM
This incident has been resolved.
MONITORING
20 days ago - at 07/14/2026 04:57PM
An issue affecting Dragon and DAX Copilot for EPIC ambient users on Epic Nebula is resolved.
DAX/Dragon Copilot launch in Epic Haiku was failing with the following message:
An error was encountered while communicating with the server. Seek assistance from an administrator if the problem persists. Code: SerializationFailure Details: Unexpected token.
Impact is specifically attributed to: Ambient users on Epic Nebulas.
Epic has identified and remediated the issue at their end as of 11:36am ET and are actively monitoring.
Thank you for your patience and continued partnership.
INVESTIGATING
20 days ago - at 07/14/2026 03:50PM
Microsoft is currently investigating reports of this error.
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